2x Xeon E5-2696 v4 Benchmark results and tuning log (44C/88T)

Page 2 - Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech.

Storm-Chaser

Senior member
Mar 18, 2020
236
76
71
I like what I am seeing :)

1670027379572.png

This thread will serve as a benchmark log for my ongoing HP z840 project. The rig is specifically built for benching and nothing else. Obviously, it cannot be overclocked, but still, I am thinking it will perform well against 12th gen processors / AMD processors as it stands. We will see about 13th gen, so the only thing I can do is come at it with as many cores as possible. This HP Z840 is now maxed out at the very limit of theoretical performance, with the highest spec'd core count CPUs (22C/44T each) and highest allowable memory speed (2400Mhz in octal channel [effective] configuration) and lowest possible memory latency (CL17).

The processors got lost in a shipment for years, so I was able to score them brand new and from a supplier in states for a pretty good deal.

I will be posting a number of benchmarks here as I test out these brand new CPUs and push them to the limit. Also comparing and contrasting to my old CPUs, two E5 2696 v3 processors, which had 18 cores and 36 threads.

Specs on new processors:
Note there is one error here, which is single core turbo speed. It's actually 3.7GHz not 3.6.
1670027150704.png

Rig we will be working with:
1670029407593.png
1670029435249.png
1670030934916.png
 
Last edited:

Storm-Chaser

Senior member
Mar 18, 2020
236
76
71
FWIW, I don't have Windows.
My Xeons are partly populated with 1 DIMM per channel, 16 GB single rank (128 GB total), and partly with 2 DIMMs per channel, 8 GB single rank (128 GB total). I once ran a somewhat memory performance sensitive application and got slightly better application performance from the 2 DPC config. I don't remember anymore which application it was. Maybe I should have looked for dual rank DIMMs for the 1 DPC population...
Though while the 1 DPC config runs its DDR4-2400 at full speed, I *believe* the 2 DPC config has got the memory kicked down to 2133. That's common with Broadwell-EP but could be avoided with LR-DIMMs.
It would be interesting to see your memory performance from a setup like that. Can you run the AIDA64 Cache and Memory benchmark and post your results here?

Also, do you have any familiarity with bitsum process lasso?

Seems like I might be able enhance my processor scheduling.